Rerouting aircraft to avoid creating contrails, taxiing aircraft using hydrogen from waste products and a personal aircraft that anyone can fly - it could all happen in the future. Bill Read reports from the third day of the ICAS conference in Nice on the latest research into ways to reduce the effect of aircraft on the environment

One of the current challenges in the development of unmanned aerial vehicles (UAVs) has been how to fly small UAVs at low altitudes without collisions. Bill Read reports from the second day of the International Council of Aeronautical Sciences ICAS conference in Nice on some of the latest research into UAV control systems, including a remarkable research experience conducted using robotic sharks.

Aircraft of the future may look very different from the conventional designs of today. Bill Read reports from Day 1 of the International Council of the Aeronautical Sciences (ICAS) conference in Nice which included research on some concepts as electrically-powered passenger aircraft, flying cars, hydrogen-powered cargo aircraft and an airship shaped like a doughnut.